Slaughter.2sites.Matur {bodycomp}R Documentation

Percent Body Fat Estimates Using Slaughter et al. (1988) According to Maturational Level.

Description

This function calculates the percent body mass estimates based on 2 sites skinfold measurements using the equations of Slaughter et al. (1988). Population Specifications: American black and white boys (aged 8 - 18) around maturation groups (Tanner Scale, 1962). American girls (aged 8 - 18).

Usage

Slaughter.2sites.Matur(Sex, Matur_lv, Race, TR, SB)

Arguments

Sex

a value or a vector representing the sex declared by the subject. Two possible choices: 0 or 1.

Matur_lv

a value or a vector representing a maturational level of the subjects assessed by the Tanner Scale (1962). Tree possible choices: 1, 2 or 3.

Race

a value or a vector representing the race from boys assessed. Two possible choices: 0 or 1.

TR

a value or a vector representing Triceps Skinfold measurements. Direction of Fold: Vertical (midline). Anatomical Reference: Acromial process of scapula and olecranon process of ulna. Measurement: Using a tape measure, distance between lateral projection of acromial process and inferior margin of olecranon process is measured on lateral aspect of arm with elbow flexed 90°. Midpoint is marked on lateral side of arm. Fold is lifted 1 cm above marked line on posterior aspect of arm. Caliper is applied at marked level.

SB

a value or a vector representing Subscapular Skinfold measurements. Direction of Fold: Diagonal. Anatomical Reference: Inferior angle of scapula. Measurement: Fold is along natural cleavage line of skin just inferior to inferior angle of scapula, with caliper applied 1 cm below fingers.

Details

Sex: Use 0 for Male and 1 for Female. Matur_lv: Use 1 for prepubescent (stages 1 and 2 - Tanner Scale); 2 for pubescent (stage 3 - Tanner Scale) and 3 for postpubescent (stages 4 and 5 - Tanner Scale). Race: Use 0 for white boys and 1 for black boys.

Value

Returns a data frame with the values of the % body fat from a subject assessed by skinfold measurements

References

Slaughter, M. H. et al. Skinfold equations for estimation of body fatness in children and youth. Human Biology, n. 60, p. 709-23, 1988.

Harrison GG, Buskirk ER, Carter JEL, Johnston FE, Lohman TG, Pollock ML, et al. Skinfold thicknesses and measurements technique. In: Lohman TG, Roche AF, Martorell R, editors. Anthropometric standardizing reference manual. Champaign (Illinois): Human Kinetics Books; 1991. p.55-80.

International Society for the Advancement of Kinanthropometry (ISAK), 2001. International Standards for Anthropometric Assessment. (Underdale, SA, Australia.).

Eston, R. (Ed.). (2008). Kinanthropometry and Exercise Physiology Laboratory Manual: Tests, Procedures and Data: Volume One: Anthropometry (3rd ed.). Routledge. https://doi.org/10.4324/9780203868744

Lohman TG. Advances in Body Composition Assessment: Current Issues in Exercise Science, Monograph Number 3. Champaign, IL: Human Kinetics, 1992.

Examples


#Predicting % body fat

df <- Slaughter.2sites.Matur(Sex = 0, Matur_lv = 1, Race = 1, TR = 13, SB = 17)



[Package bodycomp version 1.0.0 Index]